Steam platen



R. W. DINZL Aug. 11, 1931.

STEAM PLATEN Filed July 23. 1928 E 1 r i r ...H ii

lll

Patented Aug. 11, 1931 RICHARD `W.. nrNzL, or MARGATE crrY, New

JERSEY, ASSIGNOR`TO SOUTI-IWARK FOUNDRY & MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION F PENNSYLVANIA STEAM PLATEN Application led July 23, 1928. Serial No. 294,880.

My invention relates to steam plates or as they are called platens, such as employed in the curing, vulcanizing, or other heat treatment of rubber and composition goods, synthetic resins, bakelite, etc., or for other purposes where a heated plate is required; such plates or platens having internal passages for the circulation of steam or other heating medium, and in some instances a cooling medium; in other words a temperature-controldium '25 the plate, with lingmedium. For such purpose provision is made for the introduction and withdrawal of such temperature-controlling medium and in order that such temperature-'controlling me-v ina be i circulated continuously throughout the whole eXtentvof the plate or platen, the passages therein. are in communi-4 cation with each other and provide a continu,n ous conduit. l

The present invention comprises a plate or platen having cross passages placed relatively close together and extending in both directions; said fpassages `paralleling each other at right angles to marginal sides or edges of passages adjacent such marginal sides or edges at right angles to the cross passages; certain of said lcross passages being bored from one marginal edge or side of the plate and meeting the passage at right angles thereto adjacent the opposite marginal side oredge of the plate, and vcertain other passages being bored `from the second mentioned marginal side or edge of the plateand stopping short of the passage paralleling said first mentioned marginal first mentioned sets or groups of cross passages flanking the group of second mentioned cross passages which are preferably centrally' disposedand communicate with the passage extending along the marginal side or edge of the plate by through openings of-graduated, size' formed in a baffle wall; the central opening being less in area than those on each side of the same, and the inlet for the intro# v duction of the temperature controlling medi# um being opposite said central opening which is preferably disposed midway the ends of the plate. i

In the present instance the central passages having the through openings of graduated side or edge; thel size are three in number, although it will be understood that a greater or less number may be employed so long as thethrough openings are graduated in size from the central througliopening to those flanking the same( In addition to the passages adjacent the mara giiial sides or edges of the plate orfplaten, other passages are employed paralleling the same so that the plate as a whole is made up of cross passages at Vright anglesn to each other forming an internal channel or conduit for' the free circulation -ofV the'temp'eraturecontrolling medium. The outlets from this internal channel, which may be two in nurnber, are disposed at the marginal side or edge of the plate opposite the inlet connection, and the ends of theseveral passages which are bored or drilled from all four sides of the plate or platenA and not employed for inletr or .discharge purposes, are/closed by plugs.v which may be threaded into suitably pre? pared sockets butare preferably sweated or welded in said openings. Y l These and otherfeatures y are more fully.` described hereinafter; reference being` had toy the,l accompanying drawiiigs,in which:v i y i Figure 1 is a plan View ofa platen having an internal channel or conduit formed inaccordance'with my present invention.

Fig. 2 is an edge view looking in the direction ofthe arrow.a,Fig. -1. l i ,o `Fig.y 3 is an edge view looking in the direction ofthe arrow b, Fig. l.

Fig. 4 is .an enlarged sectional viewof a portion of the plate or platen shown'in Fig. f1. In the: drawings, 1 represents the bodyrof thel platelor platen, which isv preferablyl of rolled steel'and of vur'i'ifo'rni,thickness throughout its entire extent.vv VThis plate may be Irec-V sol tangular incontour and in the drawings, (and for illustrative purposes only) 'it is indicated as being slightlylonger thanwide; theinarginal sides or `edgesindicated at A' and B, `being V,somewhat longer than the marginal sides or edgesindicatedv at C 'and D. This shape, however, is not representative of all'plates embodying` vmy invention, and my invention is not limited ,to anyV dimensions of eitherwidth orA length relatively lto each other, as square plates, or plates having a relatively great length with respect to the dimension which may be termed the width, may have the features which constitute my present invention. For the purpose of description only, themarginal edges indicated at and B may represent the length of the plate, and the marginal edges indicated at C and D.. may represent the width of the plate.

The .plate may be drilled from end to end of the same lengthwise thereof, or between the marginal edges C and D, to form the passages 2 and 2a; the passages 2 being adjacent the marginal sides or edges A and B, and the Passages 2a, intermediate the Seme-` In eddition, cross passages 3 and 3a are drilled across the width of the plates; the passages 3 extending from one. side only, in the present `instance being grouped at the ends of the 1 and said passages 3? communicate Withsaid` plate and extending'inward from the mar-` ginal side or edge indicated at A.

' Intermediate these passages 3, are a series `of passages 3? which are drilled from the marginal' side or edge B of the plete, te e Pauli e Sheri distance from thelenstudnel passage 2 adjacent the marginal side or edge A, leaving between the ends of said passages Stand saidlQngit-udinal passage 2, a wall il,

longitudinal passage 2.by means of smaller diresse 'Openings 5A and 5,aL passies through said Well; the @peeing 5 beine, Centrally disposedandbeing less in crossI sectional area than the through openings 5a; said openings .being sopreportoned that While the Central.

reseaeeef theereup indicated at 3e mer Ieceive from the inlet pasage 6A suflcienttemperature, controlling medium by reason of its alignment withA Seidelet; 'the through @Penlriee ea will else be prererlyeupplied- By reason of'this partial baiiling, andthe further feet that the deehergeelltlete 7j, which. rrevide. f0r'ei'reu1-e-,ton'ef the.. temperature e011- trolling medium areV setV adjacent the ends of the Plate. er Platen, et the. marginal eide er edge of the same;-such temperature-controlling medinml will pass to the several passages disposed at right angles to each other and forming ythe internal channel o r conduit, 'nel insure the. propel: heating 0f, the entire plateror platen; l j

The endsxof the several passages which pass through the marginal-walls of the plate or Pletenere. Closed by Plugs 8,. which may be tlmeaded, into. properly vprepared sockets at theI ends of the passages, althoughl they are preferably sweat'edor welded therein.k The thnough openings 5 and 5a may be bored f from themarginal side or edge A of the plate platen, which is providedwfith the drilled openngsangl 555i; the opening recevng the in lt pire 6. and theepeniese 55e beine Closed the threaded plugsa.

Certain Otheplilge 8 H the Side oredge e5 A of the platen may be drilled for the attachment of thermometers 9, and the marginal side or edge B may be provided with small drilled openings for the attachment of thermometers 9a.

The several passages 2 and 2a, and 3 and 3a, are preferably ofthe same cross sectional area, although it will be understood that I do not wish to be limited to such construction, and that if a better distribution of the temperature controlling medium may be effected by the use of passages, either lengthwise of the plate or crosswise of the plate, that are larger or smaller, as the case may be, such arrangement is within the scope of my inven tion. kIn all instances, however, I provide the partial baffle wall indicated atei, with the through' openings connecting the central group of cross passages with thelongitudinal passage adjacent the, marginal side or edge of the plate, which are'proportioned' to each other; the central opening having the smaller cross sectional area yof the gro-up whether such group be made up of, three or more cross ber.

I claim: l

l. A heating platen comprising a thinwal'led metal plate having passages extendpassages; preferably an odd num-v ing inA both directions through the bod-y df the same substantially at right angles to each i passages which opens through twoedges of the plate adjacent a marginal side or edge ofj the same, in combination with means including inlet and outlet connections for lclosing the open ends of said several' passages;

j 2 .V A heating platen comprising a' thinwaliled rectangular metal plate having passages extending in bothdirecti'onsthrough the body of' the sameA substantially at right angles to each other; the passages extending lengthwise of the plate passing-through both marginal edges of`y the same, while the cross passages are arrangedl in groups-;the pas sages of one group extendinglfrom one marginal side or edge to a'longitudinalpassage adjacent the opposite marginal edge of the plate and the passages of: the other group and one of the longitudinal passages adjacent the opposite marginal side or edge of the plate, in combination with means including inlet and outlet connections for closing the open ends of'said passages.

3. A heating platen comprising a thin- Walled metal plate having passages extendlfrom the opposite marginal side or edge at vright angles to the passagesv Which pass through tWo marginal edges of the plate, an

apertured baille Wall between the internal ends of said last-named group of passages and one of the passages adjacent a marginal side or edge of the plate Which opens through tWo edges of the plate, means for closing the open ends of a plurality of said passages, and inlet and outlet connections Y.tor certain of said passages.

4. A heating platen comprising a thin- Walled rectangular metal plate having passages extending in both directions through the body of the same substantially at right angles; the passages extending longitudinally of the plate passing through both marginal edges of the same, While the cross passages are arranged in groups; the passages of one group extending from one marginal side or edge to a longitudinal passage adjacent the opposite marginal edge of the plate and the passages of the other group extending from the last-named marginal side or edge; an apertured baille Wall between the internal ends of said last-named group of passages and one of the longitudinal passagesl adjacent a marginal side or edge, means ior closing the open ends of a plurality of said passages, and inlet and outlet connections for certain of said passages.

5. A heating platenV comprising a thin- Walled metal plate having a series of passages extending in'one direction through the body of thesame and opening through opposite marginal sides or edges of the plate, and groups of other passages at right angles to the first-named passages; a plurality of said groups of passages extending from one 1narginal edge to the passages adjacent the opposite marginal edge Which extends at right angles to said passages through opposite marginal edges of the plate, and another group Which extends from the opposite marginal edge and substantially centrally of the plate; said latter group terminating short of the passage at right angles thereto Which extends through opposite marginal sides or edges of the plateadjacent the marginal side .or edge of the plate opposite theirpoint of` entrance and being separated therefrom by ,abafiie Wall having through openings ywhich may be in axial alignment and are of materially less cross `sectional area than the main passages, in combination with means including inlet and outlet connections for closing open ends o'l' saidpassages. l r' 6. A `heating platenV comprising a thin- Walled metal plate having a series of passages extending 1in one direction through the body of thesame and opening through opposite marginalsides or edges. of the plate, and groups of othervpassages at right angles to th`e1 irst-named passages; ,a plurality 'of said groups of passages extending from one marginal edge to the passage adjacent the` opposite marginal edge which extends `at right angles to said groups of passages through oppositemarginal edges of the plate, and

another group Which extends from the oppo` site marginal side or edge and substantially centrally of theplate said latter group terminating short of the passage at right angles thereto Which extends .through opposite marginal edges. of the plate adjacent the marginal side or edge ofthe plate opposite their point of entrance, abaiile Wall having through openings Which may be in axial alignment with the passages of said last-named group and are of materially less crosssectional area than the main passages; said baille Wall separating said vlast mentioned 'group of passages from the passage at right angles thereto which extends through opposite edges of the plate, means ffor closing open ends of a plurality ofsaid. passages, and inlet and outlet connections rfor certain of said passages.

In a structuresuchv as set forth in claim 1,. arranging the inlet for temperaturefcontrolling vmedia centrallyvvith respect to one marginal edge of the plate, and discharge outlets for said.temperature-controlling media at the Opposite marginal edge ofl the lalate. -1 f 8. In a structure such as set orthin claim l, arranging the inlet for temperature-controlling media centrallyy with respect to one marginal edge of the plate and opposite the central group of'short passages, and arranging the ,discharge outlets for saidtemperature-controlling mediav at kthe opposite marginal edge of the plate. y 9. In a structure such as setforth in claim l, arranging the inlet for temperature-controlling media centrally With respect to one marginal edge of the plate and opposite said apertured baille Wall, and arranging the discharge outlets for said temperature-control- L ling media at theopposite marginal edge of the plate.

10. In a structure such as set forth in claim l, arranging the inlet for temperature-controllingmedia centrally With respect to one marginal edge ofthe plate and opposite said apertured baiie Wall communicating with the central group of short passages, and arranging the discharge outlets for said tem-y perature-controlling media at the opposite marginal edge of the plate.

11. In a structure such as set forth in claim 1, arranging the inlet for temperaturecontrolling media centrally With respect to one marginal edge of the plate, and arranging the discharge outlets for said temperature-controlling media adjacent to the ends of the plate and opening through the edge of the Wallopposite the Wall in Ywhich said inlet opening is formed.

12. In a structure such `as set forth in claim 1, arranging the inlet for temperature-controlling media centrally With respect to one marginal edgeof the plate and opposite the central group of short passages, and arranging the discharge outlets for said temperature-controlling media adjacent to the ends of the plate and opening through the edge of the Wall opposite the Wall in which said inlet opening is formed. Y 13. In a structure'suchas set forth in claim 1, arranging the inlet for'temperature-co'ntrolling'media centrally with respect to one marginal edge of the plate and opposite said apertured baille Wall, and arranging discharge outlets Vfor said temperature-controlling media kadjacent to the ends of the plate and opening through the edge of the Wall opposite the Wall in which said inlet-opening is formed.

14. In a structure suchas set forth in claim A1., arranging the inlet for temperature-controlling media centrally with respect to one marginal edge yof the plate and 'opposite said apertured baille -Wall communicating with the central :group of short passages, and arranging the discharge `'outlets for said temperature-controlling media adjacent tto the ends `of the plate kand lopening fthrough'the edge of the Wall opposite the Wall in which said inlet opening is formed.

15. Infastructure such as se't forth in claim 6, a baille Wall :havingfthroughopenings in axial alignment With the central group of short passages and of materially less .cross sectional area than the `main passages, with the central Ethrough opening 'of less ldiameter lthan the others; said baffle -Wall separating said group of short passages .from a lpassage at right angles thereto adjacent to a marginal side orf edge of the plate.

InW-itness whereof I vhave signed this specification.

. .RICHARD W. DINZL. 

